Ignore generated aviocat tool.

(cherry picked from commit 50639cbefef8cc9f3df19241be7cf23cde8313b7)

Signed-off-by: Diego Biurrun <diego@biurrun.de>
build: Add 'check' target to run all compile and test targets.

(cherry picked from commit 4982e1ddfaff5287e05b95957f3c56901d60b56a)

Signed-off-by: Diego Biurrun <diego@biurrun.de>
build: fix 'clean' target

This fixes removal of TOOLS as well as HOSTPROGS declared in the
top-level Makefile.  The clean target in common.mak needs to be
eval'd since the variables used within are reset for each library.

(cherry picked from commit 395c3feb3bb165af5760d287a9a64344b6269fe2)

Conflicts:

	common.mak
	library.mak

Signed-off-by: Diego Biurrun <diego@biurrun.de>